Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/34542
DC FieldValueLanguage
dc.contributor.authorChang, Y.C.en_US
dc.contributor.author洪豐裕zh_TW
dc.contributor.authorLee, J.C.en_US
dc.contributor.authorHong, F.E.en_US
dc.date2005zh_TW
dc.date.accessioned2014-06-06T07:47:55Z-
dc.date.available2014-06-06T07:47:55Z-
dc.identifier.issn0276-7333zh_TW
dc.identifier.urihttp://hdl.handle.net/11455/34542-
dc.description.abstractThe preparation and characterization of a novel dicobalt-containing monophosphine ligand, 4a, is presented. Palladium-catalyzed Suzuki-Miyuara reactions employing 4a/Pd(OAc)(2) were pursued. The optimized reaction conditions were found to start with 1 molar equiv of aryllialides, 1.5-fold of phenylbronic acid, 3-fold of KF in 1 mL of THF, and I mol % of 4a/Pd(OAc)2 as catalytic precursor. The P-31 NMR studies reveal moderate reductive capacity of 4a toward Pd(OAc)(2). The unique bonding mode of 4a toward Pd ensures that the ratio of 4a/Pd is equal to 1:1. Two plausible active species, I and [I-OAc](-), were proposed as the catalytically active species in the Suzuki-Miyaura cross-coupling reaction. The validity of this assumption was examined by P-31 NMR spectra and density functional theory (DFT) means. In addition, we have demonstrated theoretically that the dicobalt moiety of 4a acts as an effective auxiliary in stabilizing the Pd(0) center during catalytic reaction.en_US
dc.language.isoen_USzh_TW
dc.relationOrganometallicsen_US
dc.relation.ispartofseriesOrganometallics, Volume 24, Issue 23, Page(s) 5686-5695.en_US
dc.relation.urihttp://dx.doi.org/10.1021/om050060jen_US
dc.subjectcross-coupling reactionsen_US
dc.subjecteffective core potentialsen_US
dc.subjectpalladium-catalyzeden_US
dc.subjectaminationen_US
dc.subjectc-o bonden_US
dc.subjectaryl chloridesen_US
dc.subjectroom-temperatureen_US
dc.subjectarylboronicen_US
dc.subjectacidsen_US
dc.subjectmolecular calculationsen_US
dc.subjectheck reactionsen_US
dc.subjectgeneral-methoden_US
dc.titleDesign, synthesis, application, and DFT investigation of Suzuki-Miyaura reactions of a dicobalt carbonyl-containing phosphine liganden_US
dc.typeJournal Articlezh_TW
dc.identifier.doi10.1021/om050060jzh_TW
item.grantfulltextnone-
item.openairetypeJournal Article-
item.languageiso639-1en_US-
item.fulltextno fulltext-
item.cerifentitytypePublications-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
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